Thank you, @baris
GitHub issue: https://github.com/julianlam/nodebb-plugin-support-forum/issues/7
ELadner created this issue in julianlam/nodebb-plugin-support-forum
Moving topic to another category has side-effects.
$ npm i grunt grunt-contrib-watch
I recommend using npm install (no further parameters) instead. Since those packages are listed within devDependencies they will be installed as long you don't add --production.